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<body style="clear:both; padding-left:10px; padding-top:5px; padding-right:5px; padding-bottom:5px"><a name="EN-US_TOPIC_0000002199998357"></a><a name="EN-US_TOPIC_0000002199998357"></a>

<h1 class="topictitle1">Backing Up a Cluster</h1>
<div><p>Before performing backup, you need to associate the resources to be protected with a specified SLA. The system protects the resources and periodically executes backup jobs based on the SLA. You can perform a backup job immediately through manual backup.</p>
<div class="section" id="EN-US_TOPIC_0000002199998357__section1240195419517"><h4 class="sectiontitle">Precautions</h4><ul id="EN-US_TOPIC_0000002199998357__en-us_topic_0000001346322404_en-us_topic_0000001142022920_ul18727123312225"><li id="EN-US_TOPIC_0000002199998357__en-us_topic_0000001346322404_en-us_topic_0000001142022920_li653882315253">Copies generated by manual backup are retained for the duration defined in the SLA.<p id="EN-US_TOPIC_0000002199998357__en-us_topic_0000001346322404_p1021414520463"><a name="EN-US_TOPIC_0000002199998357__en-us_topic_0000001346322404_en-us_topic_0000001142022920_li653882315253"></a><a name="en-us_topic_0000001346322404_en-us_topic_0000001142022920_li653882315253"></a>If the protection policy selected during manual backup is not defined in the SLA, the generated backup copy is retained permanently. If incremental backup is not defined in the SLA but is selected during manual backup, the copies generated by the manual incremental backup are retained permanently.</p>
</li><li id="EN-US_TOPIC_0000002199998357__en-us_topic_0000001346322404_en-us_topic_0000001142022920_li648823113014">If a replication or archive policy has been defined in the SLA, the system will perform replication or archiving once based on the SLA when you perform manual backup.</li><li id="EN-US_TOPIC_0000002199998357__en-us_topic_0000001346322404_li147271733132211">During manual backup, the parameters (except <span class="uicontrol" id="EN-US_TOPIC_0000002199998357__uicontrol1668154215316"><b>Automatic Retry</b></span>) defined in the SLA, such as <span class="uicontrol" id="EN-US_TOPIC_0000002199998357__uicontrol5682164214317"><b>Rate Limiting Policy</b></span>, are applied to the manual backup job.</li></ul>
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<div class="section"><h4 class="sectiontitle">Procedure</h4><ol><li><span>Choose <span class="uicontrol" id="EN-US_TOPIC_0000002199998357__en-us_topic_0000001656569013_en-us_topic_0000001666345505_uicontrol865195012392"><b><span id="EN-US_TOPIC_0000002199998357__en-us_topic_0000001656569013_en-us_topic_0000001666345505_text4651950123919"><strong>Protection</strong></span> &gt; Big Data &gt; GaussDB (DWS)</b></span>.</span></li><li><span>Click the <span class="uicontrol"><b>Clusters</b></span> tab, locate the row that contains the resource to be protected, and choose <span class="menucascade"><b><span class="uicontrol">More</span></b> &gt; <b><span class="uicontrol">Protect</span></b></span>.</span><p><p>You can also select multiple resources for batch protection.</p>
</p></li><li id="EN-US_TOPIC_0000002199998357__li62021148167"><span>Enter <span class="uicontrol" id="EN-US_TOPIC_0000002199998357__uicontrol5202191417162"><b>Backup Metadata Storage Path</b></span>. Enter a directory on a GaussDB (DWS) node to store backup copy metadata. If the directory does not exist, the system will automatically create it. The GaussDB (DWS) cluster user must have the read and write permissions on the directory.</span><p><div class="note" id="EN-US_TOPIC_0000002199998357__note16947036142819"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0000002199998357__ul5424191615296"><li id="EN-US_TOPIC_0000002199998357__li7424191672914">You are advised to reserve at least 20 GB disk space for the backup metadata storage path. Do not configure the path as a system volume or production service volume. Otherwise, ongoing production services will be affected when the disk space is insufficient.</li><li id="EN-US_TOPIC_0000002199998357__li89481217182914">For details about whether the GaussDB (DWS) cluster user has the read and write permissions on <span class="uicontrol" id="EN-US_TOPIC_0000002199998357__uicontrol32051027310"><b>Backup Metadata Storage Path</b></span> and how to determine the permissions, see <a href="en-us_topic_0000002199963977.html#EN-US_TOPIC_0000002199963977__li836512573513">the access permissions on the backup metadata storage path</a>.</li></ul>
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</p></li><li><span>Select an SLA.</span><p><p>You can also click <span class="uicontrol"><b><span><strong>Create</strong></span></b></span> to create an SLA.</p>
<div class="note"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p><span>If a WORM policy has been configured for the resources to be protected, select an SLA without a WORM policy to avoid WORM policy conflicts.</span></p>
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</p></li><li><span>Click <span class="uicontrol" id="EN-US_TOPIC_0000002199998357__en-us_topic_0000002200146973_uicontrol23691650677"><b>OK</b></span>.</span><p><p id="EN-US_TOPIC_0000002199998357__en-us_topic_0000002200146973_en-us_topic_0000001656691397_p25041111535">If the current system time is later than the start time of the first backup specified in the SLA, you can select <strong id="EN-US_TOPIC_0000002199998357__en-us_topic_0000002200146973_b9624185216713">Execute manual backup now</strong> in the dialog box that is displayed or choose to perform automatic backup periodically based on the backup policy set in the SLA.</p>
</p></li><li><strong>Optional: </strong><span>Perform manual backup.</span><p><p>If you want to execute a backup job immediately, perform manual backup through the following operations. Otherwise, skip this step.</p>
<ol type="a"><li>In the row of the cluster to be backed up, choose <strong>More</strong> &gt; <strong>Manual Backup</strong>.</li><li id="EN-US_TOPIC_0000002199998357__li52038141167">Set the name of the copy generated through manual backup.<p id="EN-US_TOPIC_0000002199998357__p420310146161"><a name="EN-US_TOPIC_0000002199998357__li52038141167"></a><a name="li52038141167"></a>If this parameter is left unspecified, the system sets the name to <strong id="EN-US_TOPIC_0000002199998357__b1581789202710">backup_</strong><em id="EN-US_TOPIC_0000002199998357__i48171794275">Timestamp</em> by default.</p>
</li><li>Set a protection policy.<p>For a cluster, you can select <span class="uicontrol"><b>Full Backup</b></span>, <span class="uicontrol"><b>Incremental Backup</b></span>, or <span class="uicontrol"><b>Differential Backup</b></span>.</p>
<div class="note"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0000002199998357__en-us_topic_0000002200146973_p13522118194919"><span id="EN-US_TOPIC_0000002199998357__en-us_topic_0000002200146973_ph19374310343">If the selected protection policy is different from that configured in the associated SLA for 1.6.0 and later versions, the WORM configuration does not take effect.</span></p>
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</li><li id="EN-US_TOPIC_0000002199998357__li620314148167">Click <span class="uicontrol" id="EN-US_TOPIC_0000002199998357__uicontrol2318315286"><b>OK</b></span>.<div class="note" id="EN-US_TOPIC_0000002199998357__note152039149163"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0000002199998357__en-us_topic_0000001607531736_p870125314544">You can select multiple resources to perform manual backup in batches. Select multiple resources and choose <span class="uicontrol" id="EN-US_TOPIC_0000002199998357__en-us_topic_0000001607531736_uicontrol14182155715711"><b><span id="EN-US_TOPIC_0000002199998357__en-us_topic_0000001607531736_text662114113158"><strong>More</strong></span> &gt; <span id="EN-US_TOPIC_0000002199998357__en-us_topic_0000001607531736_text1068159191519"><strong>Manual Backup</strong></span></b></span> in the upper left corner of the page.</p>
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<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="en-us_topic_0000002164597666.html">Step 6: Performing Backup</a></div>
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